On Tue, Apr 05, 2011 at 12:57:27PM -0500, Manoj wrote: > > >When both are enabled in BIOS what protocol does the kernel use to talk > >to the touchpad? Does it use synaptics protocol? > > Yes it uses Synaptics TouchPad. > > if (max_proto > PSMOUSE_PS2 && synaptics_detect(p .. etc... > > I should say here that the trackpoint is not detected. And sometimes > (very random) the trackpad is detected as PS/2 Mouse when touchpad > and trackpoint are enabled in the BIOS... here is what it looks like > in dmesg when it shows up as PS/2 Mouse instead of TPPS/2 IBM > TrackPoint. > > [ 9.797624] input: ThinkPad Extra Buttons as > /devices/platform/thinkpad_acpi/input/input8 > [ 10.480034] serio: Synaptics pass-through port at isa0060/serio1/input0 > [ 10.536122] input: SynPS/2 Synaptics TouchPad as > /devices/platform/i8042/serio1/input/input9 > [ 34.507201] input: PS/2 Generic Mouse as > /devices/platform/i8042/serio1/serio2/input/input10 > Ah, so we do know that the touchpad has a pass-through port. I guess you can try booting with i8042.debug with touchpad enabled and disabled and see where exactly we fail to enable trackpoint the the former case. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
